Abstract
The article presents the results of tests of the static friction coefficient of cooperating material sets. The tests were made on two graphite materials—pure expanded graphite and expandable graphite with PTFE—cooperated with a steel surface. The device, on which the friction coefficient was tested, enables the study to be conducted in the reciprocating motion. Measurements were made at different unit pressures (0.5; 2 and 5 MPa) and for different work cycles (0, 500, 1500, and 3000). Based on the obtained results, it has been found that the set with pure expanded graphite has a higher static friction coefficient than the set of the graphite with PTFE. In addition, the influence of load and number of cycles on the coefficients of friction of the examined material combinations is noticeable. Also, the fact of the film formed on the combination steel surface also requires noticing.
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Rewolinska, A., Perz, K. (2018). Influence of Selected Factors on Static Friction for Combination of Expanded Graphite-Steel. In: Hamrol, A., Ciszak, O., Legutko, S., Jurczyk, M. (eds) Advances in Manufacturing. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-319-68619-6_43
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DOI: https://doi.org/10.1007/978-3-319-68619-6_43
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